Auxiliary air valve for internal-combustion engines



. A. WAGNER AUXILIARY AIR VALVE FOR INTERNAL COMBUSTION ENGZINES Filed Abril 23. 1923 Me 71750 2*. fiZe 7% MWMTB posite sides of the raemea Get. it, teas.

UNHTED STATES 0F CINCINNATI, OHIO, ASSIGNOB TO THE WEMB COMPANY, OF CINCINNATIfO'I-IIO, .A CORPORATION OF OHIO.

ALBERT WAGNER,

1,470,785 aren't enric AUXILIARY AIR VALVE FOR INTERNAL-COMBUSTION. ENGINES.

Application filed April 23, 1923. Serial No. 634,095.

tion engine to be mixed with the fuel from the carbureter, the objects of the. present invention being to simplify reduce the cost of production, and increase the efliciency of the device.

The invention is illustrated in the accompanying drawing and will be hereinafter fully set forth.

In the drawing, Fig. 1 is a side elevation and the trunk of an intake manifold having my improved device associated therewith.

Figs. 2 and 3 are elevations showing opimproved device,

Fig. 4 is a section on the line 44 of Fig. 3,

Fig. 5 is a longitudinal section on the line 5-7-5 ofFigure 4,

Fig. 6 is a similar view'on the line 6-6 of Fig. 4,

Fig. 7 is of Fig. 5.

The carbure r 1 is illustrated in a conventional manner and may be of any known or preferred construction. It is provided at 2 with 'a throttle valve controlled by a lever 3 which is actuated by a throttle rod, not shown. The fuel flowing from the carbureter is delivered into the trunk 4 of the intake manifold and thence passes into the engine cylinders. Between the carbureter outlet and the trunk 4 I interpose a flatsided substantially elliptical body 5 having a transverse opening 6 therethrough to aline I with the said outlet and the bore of the body trunk, and bolts 7 are inserted through the said body and through flanges or lugs on the carbureter and the trunk to secure the firmly in place, gaskets 8 being disposed between the sides of the body 5 and the said flanges or lugs to prevent leakage.

A lining ring 9 is fitted in the opening 6 and secured in place by brazing or in States,-

air between the carburetor and the-intake manifold of an internal combuss the construction,-

a detail section on the line 7-7 seat by a spring 24 any other preferred or convenient manner.

The ring 9 is provided with two annular series of perforations or ports 10 and 11 which register, respectively, with the annular grooves 12'and 13 in the wall oi the opening 6, the groove 12 being narrower than the groove 13-and the perforations 10 being smaller than the perforations 11. At one end of the body is a vertically disposed c linder l4 and at the lower end of said cy inder is a circularenlargement or projection 15, one side of the enlargement being constructed to receive and partly support the nipple 16 with which 1s engaged the end of an air supply pipe, the illustration of which is not necessary to an understanding of my invention. A transverse spindle 17 extends through the enlargement 15 centrally thereof and 1s rotatable therein while arranged eccentrically in the enlargement on different diameters of the same, are ports 18 and 19 of unequal capacities. A passage or channel 20 extends through the body 5 from the port 19 to the annular groove 12 and establishes communication between'said-port and groove, while a short passage 21 leads from the port 18 into the hollow interior of the cylinder 14 and a passage 22 leads from the cylinder to the groove 13 whereby communication between the port 1.8 and the is yieldably held to its bearing upon'the valve, as shown. A plug 25. is threaded into the upper end of the cylinder 14 and bears upon the upper end of the spring 24 to regulate the tension of the same, a locking washer 26 being mounted on said plug 25 andbearing upon the top of the cylinder to lock the plug in a set position. The ports 18 and 19 open through largenzient 15 and a disk cut-off valve 27 controls the flow through said ports, said the passage 21 and disk valve being carried by the adjacent end of the spindle 1? and lying close against the face of the member 15. Notches 28 and 29 are formed in the edge of the disk valve to uncover the ports 18 and 19 respectively, both ports being covered ,nor mally by the portion of the disk between the notches, as shown in Fig. 3. The notches are at diametrically opposite points of the disk but the ports are out of alinement so that, in the operation of the device, the

groove 13 is established. A ball valve 23 seats in the upper end of one side of the en- I notch 29 will uncover the port 19 butthe port 18 will remain covered until additional or further movement is imparted to the disk.

Upon the end of the spindle 17 remote from the disk valve is secured a crank 30 and a link 31 connects said crank with the lower end of a trip lever 32 which is pivotally mounted between. lugs 33 on the body 5 at the end of the same remote from the cylinder 14. The trip lever has its upper end arranged in the path of a trip on the throttle rod to be actuated in the manner set forth in. my hereinbefore identified application. A coiled spring 34 is arranged around theprojecting end portion of the spindle'17 and has one end secured to the body 5 and its opposite end attached to the link 31 or the. crank- 30 so that it tends constantly to hold the disk valve in the position, shown in Fig. 3, in which the ports 18 and 19 are both covered and the inflow iof air is out 01?. v

If the engine be running idle or at a very low speed, the ports 18 and 19 will be closed as shown. When the throttle is opened to admit more fuel and increase the speed of the engine, the lever 32 will be rocked and its movement is transmitted through the link 31 to the crank 30, the spindle 17 and the valve 27 being, consequently, rocked so that the notches 28 and 29 are movedtoward the ports 18 and 19. As the movement continues, the port 19 will be uncovered and, subsequently, the port 18 will "be uncovered. en the port 19 is uncovered air will at once flow through the same and thence through the passage 20 into the groove 12, escaping through the perforations 10 in small streams of high velocity which will penetrate the mixture flowing from the carbureter. When the port 18 is uncovered and the engine speed increases, however, the suction and air pressure will eventually overcome the force of the spring 24 whereupon the valve 23 will beunseated and air will flow through the passage 22 to the h groove 13 and escape through the perfora tions 11 to penetrate the charge. As the engine speed decreases, the valve 23 will be seated but the ports 18 and 19 will remain open until the throttle rod is shifted in the proper direction and to the proper extent to permit the disk 27 to return to closed position.

My improved device is very simple and may be produced at a very low cost.' By.

its use, mlleage per gallon of fuel is increased and the engine will run more smoothly and with greater speed. andpower than heretofore owing to the additional air supply which is discharged at high velocity into the mixture supplied by the carburater. The inner valve 23 is brought into action only after the port 19 is fully opened, and supplies needed additional air as the speed increases.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent of the United States is 1. A device of the character described adapted to be placed. between a carbureter and an internal combustion engine comprising a body having an opening to register with the outlet of the carbureter, said bedy' havinga plurality of passages to admit air to said. opening, said passages having inlet ports in a side of the body, a cut-off valve rotatably mounted on the body and fitting close to the side of the same, said Val consisting of a disk normally covering both said inlet ports and rovided with. diametrically opposite notclies whereby rotation of the disk will successively uncover both said ports, and a normally closed valve in one of the passages operable to open after both inlet ports have been uncovered.

2. A device of the character described adapted torbe placed between a carbureter and an internal combustion engine comprising a body having an opening to register with the outlet of the carbureter, said body having a plurality of passages to ad mit air to said opening, sai passages having inlet ports in a side of the body, a cutoff valve rotatably mounted on the body and fitting close to the side of the same, said valve consisting of a disk normally covering both said inlet ports and provided with diametrically opposite notches whereby rotation of the disk will successively uncover both said ports, a ball valve seating at an intermediate point of one of the passages to close the same, and a spring bearing upon said ball valve and holding it seated until after the mechanical valve has been opened.

3. A device of theeharacter described adapted to be placed between a carbureter and an internal combustion engine comprising a body having an opening to register with the outlet of the carbureter, said body aving a plurality of passages to admit air to said opening, said passages having inlet ports in a side of the body at one end thereof, a rotatable spindle extending through said end of the body, a cut-oil valve carried by said spindle to normally close both said inlet ports and constructed to open them successively upon rotation, a crank upon said spindle, a lever mounted upon the opposite end of the body and adapted to be actuated by the throttling mechanism of the carbureter, a link connecting said lever and the crank, and yieldable means acting on the crank for holding the cut-0E valve normally in closed position.

In testimony whereof I hereunto afiix my signature.

ALBERT AGNER. 

